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    • 10. 发明申请
    • PRE-STRESSED SUBSTRATE FOR PHOTOGRAPHIC PAPER
    • 用于摄影纸的预应力基底
    • US20110293859A1
    • 2011-12-01
    • US13201448
    • 2009-02-27
    • Xulong FuChristine E. SteichenRonald J. Selensky
    • Xulong FuChristine E. SteichenRonald J. Selensky
    • B41M5/40B05D1/36
    • B41M5/5218B41M5/504B41M5/506B41M5/508B41M5/52B41M5/5254D21H19/36D21H19/84G03C1/79Y10T428/24628Y10T428/24934
    • A pre-stressed substrate for a photographic paper includes a base paper having a front surface and a back surface; a top pre-stress coat on the front surface, the top pre-stress coat including a first pre-stress mixture containing at least a first pigment, a first binding material including a first water soluble binder and a first water-dispersible binder; and a back pre-stress coat on the back surface, the back pre-stress coating including a second pre-stress mixture containing at least a second pigment, a second binding material including a second water soluble binder. The weight % of the first water soluble binder in the first binding material is less than the weight % of the second water soluble binder in the second binding material. The pre-stressed substrate has a predetermined degree of curvature toward the back surface and is capable of countering curling forces that occur when the pre-stressed substrate is used.
    • 用于照相纸的预应力衬底包括具有前表面和后表面的原纸; 前表面上的顶部预应力涂层,顶部预应力涂层包括含有至少第一颜料的第一预应力混合物,包含第一水溶性粘合剂的第一粘合材料和第一水分散性粘合剂; 和后表面上的背部预应力涂层,后部预应力涂层包括含有至少第二颜料的第二预应力混合物,第二粘合材料包括第二水溶性粘合剂。 第一结合材料中第一水溶性粘合剂的重量%小于第二粘结材料中第二水溶性粘合剂的重量%。 预应力衬底具有朝向后表面的预定曲率,并且能够抵抗当使用预应力衬底时发生的卷曲力。